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Shopping for 2004-GMC-Sierra 2500 HD
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Water Pump

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Engine Water Pump with Thermostat & Gasket
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Engine Water Pump with Thermostat & Gasket for Chevy Tahoe GMC Yukon Buick Isuzu
4.8113 Reviews
$112.99
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2-year warranty
90 days free return
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Vehicle: 2004 GMC Sierra 2500 HD
Specifications
Engine Water Pump with Gasket
A-Premium®
Engine Water Pump with Gasket for GMC Chevy Silverado Sierra 1500 1999-2006
4.8113 Reviews
$99.99
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2-year warranty
90 days free return
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Vehicle: 2004 GMC Sierra 2500 HD
Specifications
Engine Water Pump with Gasket
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Engine Water Pump with Gasket for Chevrolet GMC Isuzu Workhorse 4.3L 5.0L 5.7L
4.8113 Reviews
$64.99
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2-year warranty
90 days free return
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Vehicle: 2004 GMC Sierra 2500 HD
Specifications
Engine Water Pump with Gasket
A-Premium®
Engine Water Pump with Gasket for Chevrolet Silverado 3500 GMC Sierra 2500 HD
$90.99
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2-year warranty
90 days free return
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Vehicle: 2004 GMC Sierra 2500 HD
Specifications
Engine Water Pump with Gasket
A-Premium®
Engine Water Pump with Gasket for Chevy Silverado 2500 HD GMC 6.6L Turbo Diesel
$57.99
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2-year warranty
90 days free return
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Vehicle: 2004 GMC Sierra 2500 HD
Specifications
Beck/Arnley 131-2391 Engine Water Pump Assembly
Beck/Arnley
Beck/Arnley 131-2391 Engine Water Pump Assembly
$274.99
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3-year warranty
90 days free return
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Vehicle: 2004 GMC Sierra 2500 HD
Specifications

What does a water pump do in a car?

The water pump in your vehicle transports coolant from the radiator to the engine and then circulates it back to the radiator, restarting the cycle. This process is essential for maintaining a consistent engine temperature, regardless of external conditions.

As the coolant flows through the engine, it absorbs heat, causing it to warm up. To prevent the engine from overheating, the water pump ensures that the heated coolant is redirected back to the radiator, where it can cool down before re-entering the engine. Without this crucial function, your engine would be at risk of overheating.

Signs of a bad water pump

Signs of a failing or bad water pump in a car include:

  • Coolant leak: Puddles of coolant under your vehicle.
  • Engine overheating: Consistent high engine temperatures.
  • Low coolant levels: Frequent need to add coolant.
  • Unusual noise: Grinding, whining, or squeaking sounds from the engine area.
  • Heater performance issues: Reduced heat output inside the car.
  • Coolant contamination: Milky substance in oil or on the oil cap.
  • Steam or smoke: Emanating from the engine compartment.
  • Check engine light: Illuminated due to irregular engine temperature.
  • Visual inspection: Corrosion, rust, or coolant residue around the water pump.
  • Coolant whirlpool: Observable swirl in the radiator when the engine is cool.